Separability criterion for three-qubit states with a four dimensional norm
Quantum Physics
2017-09-13 v2
Abstract
We give a separability criterion for three qubit states in terms of diagonal and anti-diagonal entries. This gives us a complete characterization of separability when all the entries are zero except for diagonal and anti-diagonals. The criterion is expressed in terms of a norm arising from anti-diagonal entries. We compute this norm in several cases, so that we get criteria with which we can decide the separability by routine computations.
Keywords
Cite
@article{arxiv.1705.05557,
title = {Separability criterion for three-qubit states with a four dimensional norm},
author = {Lin Chen and Kyung Hoon Han and Seung-Hyeok Kye},
journal= {arXiv preprint arXiv:1705.05557},
year = {2017}
}
Comments
29 pages, to appear in Journal of Physics A: Mathematical and Theoretical